Self-adjusting Locksmith Tool with Dynamic Threaded Connection

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Solution Overview

Problem

Existing locksmith tools are cumbersome, unreliable, and prone to mechanical damage when dealing with complex locks featuring randomly oriented code plates, leading to inefficient and potentially destructive unlocking processes.

Innovation Solution

A self-adjusting locksmith tool with a handle and decoding end piece featuring a carrier with longitudinal openings, perpendicular pins, and two pumping elements that allow independent rotation and axial displacement, along with guides and pin holders that accommodate differently oriented code plates, eliminating the need for a pusher and enhancing tool strength and ease of use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional locksmith tools with direct bolt connections are used, then the structure is simple, but the tool cannot rotate relative to the decoding end piece and may self-unwind

Engineering Contradiction:
Improverotation capabilityVSAvoidconnection mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces static bolt connections with a dynamic threaded connection system that allows controlled rotation. The swirl rotates relative to the decoding end piece through threaded engagement with the puller, enabling dynamic adjustment while preventing self-unwinding through friction and thread geometry.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent introduces a puller as an intermediary element between the swirl and the decoding end piece. The puller mediates the connection by engaging with both the swirl and the decoding end piece, allowing rotation while preventing self-unwinding through its threaded engagement with the swirl.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If U-shaped pumping elements with complex wavy profiles are used, then the decoding function is achieved, but the durability of the product is reduced

Engineering Contradiction:
ImprovedurabilityVSAvoidpumping element structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the pumping element into simpler geometric components rather than using a single complex wavy profile. The pumping element is divided into distinct sections with simpler curves, reducing stress concentration points and improving durability while maintaining the decoding function.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If side lifters and multiple holders are added to the tool, then the decoding capability is improved, but the operation becomes more complicated

Engineering Contradiction:
Improvedecoding capabilityVSAvoidoperation simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent merges the functions of side lifters and multiple holders into an integrated carrier structure. The carrier combines multiple functional elements into a single unified component that performs decoding operations without requiring separate manipulation of multiple independent parts, simplifying the operation while maintaining versatility.

Inventive Principle:
Principle #5Merging (Combining)

4Adaptability or versatility

If the tool is designed to accommodate randomly oriented code plates, then the adaptability increases, but the tool length and weight increase making it more inconvenient to operate

Engineering Contradiction:
Improveorientation adaptabilityVSAvoidtool weight
Core Design Contradiction:
Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent employs dynamic positioning mechanisms that allow the code plates to be oriented in different directions without requiring multiple fixed-position plates. The carrier and pumping elements can rotate and adjust to accommodate various orientations, reducing the need for additional weight to support multiple fixed configurations.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3877613B1Professional locksmith tool
Publication Date: 2023.01.18 IVAYLOV GEORGI ANGELOV
  • EP3877613B1 patent drawingFigure 1~3
  • EP3877613B1 patent drawingFigure 4~8
  • EP3877613B1 patent drawingFigure 9

AI summary

The invention relates to a professional locksmith tool and in particular to a self-adjusting locksmith tool used for non-destructive emergency unlocking of locked locks and keyholes. The locksmith tool includes a handle (2) and a decoding end piece (1), the decoding end piece (1) comprising: a carrier (12); pins (26) arranged on the carrier (12); pumping elements (13) mounted on the carrier (12) and guides (14) located on the pumping elements (13), and the handle (2) comprising: an axially arranged power swirl (3), a threaded bushing (6) mounted in the power swirl (3); a threaded plug (7), screwed to the bushing (6); a puller (8) mounted in the bushing (6); a swirl (10) in which the end of the bushing (6) with the puller (8) is mounted, along the axis of the handle (2) are formed axial openings (5) through the power swirl (3), the threaded plug (7) and the puller (8), in which openings is mounted and fixed the assembled decoding end piece (1).